Qt4Lab is an extension to the Qt application framework from Trolltech. This project will be developed according to the Open Source philosophy and will be distributed under LGPL.
Qt4Lab provides widget plugins and utilities for Rapid Application Prototyping for developing SCADA applications. The application field is automotive/aerospace.
Widgets plugins are developed on GNU/Linux and are available for GNU/Linux and Windows NT/2000/XP. Release 0.1.0 is now available (screenshots).

Thanks for your reply.
I'm very glad about your offer and I would like to think a bit about what you'we written. Before deciding, I would like to ask you if qwt uses Qt Designer plugin technology and if qwt is interested in adding avionic widget plugins. You know, with this project, I would like to provide some flight instruments like FLIGHT DIRECTOR INDICATOR (you can have a look at the URL:http://www.allstar.fiu.edu/aero/FltDirS.htm.) and so on...
At the moment I'm writing some simple plugins just for learning Qt and it can appear my widgets are similar to qwt widgets, but for the future I would introduce some "flight simulator" specific widgets for SCADA application in the avionic industry (my best experienced field).
Thank you very much and please accept my compliments for your work.
Best Regards
paolo

Sorry to say I can't take any credit for Qwt, as I am only a potential user:-) Having looked at it several times and concluded "this has to be useful", but since I have not had the time or any relevant project that's about all I have done:-( But since I know of it's existence I was curious.

Qwt provides Qt Designer pluggins for Qt 3.0 and greater according to their website.

I searched for SCADA and Qt - also a few years ago - and got only one resulthttp://www.pvbrowser.org/pvbrowser/
Good to see others are now joining the effort.
I work at a SCADA company. The old technology was OpenVMS/C/Motif. The new is Linux/Java/Web. To compete, the Qt/Qt4Lab widgets will need to work from a web page - either as plugins similar to applets or using a mechanism similar to Java Web Start.

Thank you for your reply.
You gave me an interesting link. In fact I'm interested about SCADA security and I will introduce security aspects in Qt4Lab as soon as the plugins are stable and the framework will be a bit more solid (now I'm just starting the project and I'm learning to work with Qt)
Best Regards
paolo

From the screenshots I found the widgets really ugly. Also, some are not necessary, as there are similar in Qt or KDE, for example, KDE has a led-like (replaces PLed), Toggle (checkbox, state buttons, ... replaces PSwitch) and goes...